Busoni needs listening to in extenso, troughs (not deep ones) as well as peaks. He was the first to acknowledge that his mature style was late in developing, but he was no late starter: the earliest music here, and pretty accomplished it is too, was written at 12 years old and by the age of 18 he had written the remarkable Variations and Fugue on Chopin's C minor Prelude, a tour de force of late nineteenth-century pianism and sonorous inventiveness.